TM5-6115-465-34
TO 35C2-3-446-2
NAVFAC P-8-625-34
TM 06858B/06859D-34
Figure 3-49.
Dimensional Inspection of Camshaft
(7) If runout of any bearing exceeds limit speci-
(b) Press replacement bearings into cylin-
fied total (step 6(e) above), replace camshaft and
der block.
bearings.
d.
Assembly.
(8) Perform magnetic particle inspection on
camshaft and drive gear in accordance with estab-
(1) Assemble camshaft in reverse order of re-
lished procedures.
moval procedures.
(9) Check all threads for crossing, stripping,
(2) Torque nut (3, figure 3-48) to 130 ft-lbs.
and peening. Repair minor thread damage using a
thread chaser.
e.
Installation.
(10) Measure and record diameter of camshaft
NOTE
bearings in cylinder block. Subtract camshaft bearing
journals dimensions from the corresponding bearing
Valve tappets must be in the UP position to
inner diameter. The difference shall not be less than
install camshaft.
0.0015 inch or greater than 0.0035 inch.
(11) If dimension obtained in step (8) indicates
excessive wear, replace camshaft bearings as follows:
Make sure that timing mark on camshaft
drive gear mates with timing mark on
(a) Using a suitable press, remove cam-
shaft bearings from cylinder block.
crankshaft gear.
(1) Install camshaft in reverse order of re-
Make sure that the replacement bearings
moval procedures.
are installed so that oil holes match with
oil ports in cylinder block
(2) Check camshaft end thrust as follows.
3-74
